Crocker



J. H. GROGKER. BEADING ATTACHMENT FOR GORNIOE BRAKES.

(No Model.)

No. 548,040. Patented O e-L15, 18 95 UNITED STATES PATENT OFFICE.

JOHN H. CROCKER, OF SHELBURNE, CANADA.

BEADING ATTACHMENT FOR CORNlCE-BRAKES.

SPECIFICATION forming part of Letters E'atent No. 548,040, dated October15, 1895.

Application filed March 7, 1895- To aZZ whom it may concern/.-

Be it known that I, JOHN HOOPER CROCKER, of Shelburne, in the county ofDufferin and Province of Ontario, Canada, have invented a certain newand useful Beading Attachment for Cornice-Brakes; and I hereby declarethat the following is a full, clear, and exact description of the same.

This invention relates to a heading attachment which can be easilyoperated, cheaply manufactured, and readily adjusted and attached to anystyle of cornice-brake.

The invention consists, essentially, of a T- shaped bed-plate extendinghorizontally from end to end of the cornice-brake and adapted to beinterposed between the top leaf and the bottom leaf and arranged to besupported by the bottom leaf and bending leaf of the cornice-brake.Detachably connected to each end of the top of the bed-plate is abearingbracket and removably mounted in the bearing-brackets is thebeading-rod. Connected to each end of the beading-rod is a crank bymeans of which the beading-rod is revolved. Detachably hinged to thebed-plate are a series of spring-operated clamps which are arranged atequidistant points from the ends of the bed-plate and from each other,and which are so arranged as to securely hold in position thebeading-rod by the pressure of the top leaf upon the clamps. Thebed-plate is provided with a downwardly-projecting flange held by theusual molding-clamps ordinarily attached to the cornice-brake. Thecornice-brake is provided with a means for adjusting the top leaf to thebottom leaf when the beading attachment is in position.

The whole device is hereinafter more fully set forth, and moreparticularly pointed out in the claims.

In the drawings, Figure 1 is a perspective view of a cornice-brake withthe top leaf removed, showing the application of my beading attachment.Fig. 2 is an end view of a cornice-brake with my beading attachment.Fig. 3 is a rear view of a portion of the bed plate, one of the clamps,and the means for hingingthe clamp to the bed-plate. Fig. at is a viewof a sheet of-metal beaded.

Like letters of reference refer to like parts throughout thespecification and. drawings.

The cornice-brake may be of any of the Serial No. 540,842- (No model.)

usual styles now in use. Connected to the bending leaf A are the usualmolding-clamps B, preferably made of steel. Supported upon the top ofthe bottom leaf C and upon the top of the bending leaf A is a bed-plateD, having a downwardly-projecting flange E, arranged to be held by themolding-clamps B. The top of the bed-plate D is perfectly level. Boltedor otherwise detachably connected to each end of the bed-plate D is abracket or strap F, in which is journaled a beading-rod G, which is solocated as to be clear of the front of the top leaf H. Extending fromend to end of the beading-rod G is a groove or slot I to receive theedge of the metal intended to be beaded. Mounted on the top of thebed-plate D are a series of holding-clamps J, which are preferablyarranged equidistant from each other and from the ends of the bed-plateD. Each of the holdingclamps J consists of a strap j, having its frontend curved to grip the beading-rod G and having formed on its rear endtwo downwardlyprojecting lugs K, arranged one at each side of the strap.Formed through each of the lugs K is a hole or opening (arranged in linewith each other) to receive a hinge-pin L. Bolted or otherwise connectedto the back of the bedplate D are a series of hinge-plates M,corresponding in number and location with the number and location of theholding-clamps J. Each of the hinge-plates M is provided with two lugsN, provided with holes or openings corresponding in size and locationwith those in the lugs K. Passing through the lugs N K is the hinge-pinL. The hinge-plate M extends below the lower edge of the bed-plate D andoverlaps the rear edge of the top 0 of the bottom leaf. The hinge-platesM, by overlapping the rear of the top 0 of the bottom leaf C, assist themolding-clamps B to retain the bed-plate in its proper position. Coiledon the hinge-pin L between the lugs K is a spring P, which has atendency to throw upward its respective clamp J when the pressure of thetop leaf H has been removed. Formed on the top of each of the clampsJ isa shoulder Q. The shoulders Q of all of the clamps J correspond inheight and are intended to receive the top leaf H in order that the fullweight of the top leaf can bear upon the holding-clamps and the top leafbe held entirely free from the beading-rod G. I do not, however, confinemyself to any particular style of a recoil-spring to throw theholding-clamps off the beading-rod nor to any particular style of hinge.

The bearing-brackets F are so arrangedas to permit the beading-rodGbeing withdrawn sidewise through them to permit of the removal andreplacement of the beading-rod.

The operation of the heading attachment is as follows: The beading-rodis withdrawn from its brackets F and the metal is placed in position onthe bed-plate D. The top leaf is then brought to bear on theholding-clamps J in order that the beading-rod maybe guided straightduring its replacement. The heading-rod is then moved back into positionthrough its respective bracket and the holding-olamps. The edge of thesheet of metal enters the groove I as the beading-rod is pushed towardthe bearing-bracket at the opposite end. When the opposite end of thebeading-rod has been replaced in its respective bracket, the crank(which had been previously removed to permit of the withdrawal of thebeading-rod) is replaced on the said end. The beading-rod is then turnedto form the required bead upon the edge of the sheet of-metal. After therequired head has been formed one of the cranks is removed from the endof the beading-rod and the beading-rod is withdrawn and the top leaf israised to allow of the holding-clamps J being thrown up to allow of theremoval of the beaded metal. To provide sufficient space between the topleaf and the bottom leaf to receive the beading attachment it isnecessary to adjust or lengthen the clamping device of the brake so thatthe top leaf may be raised to the required height from the top of thebed-plate D to allow of it opening from or closing on the top of theshoulder Q. This adjustment I may accomplish by providing the bottomleaf with a pin R and the topleaf with a pin S and coupling the pins R Swith a link T. In the lower end of the link T is an elongated verticalslot U, and formed in the upper end of the link T is a curved horizontalslot V. Set on the pin R is a metallic block WV, corresponding in sizeand shape with the size and shape of the slot U. The pin R passesthrough the metallic block IV at or near one end of it, and when theblock W is set above the pin R the top leaf can be moved to its farthestextent from the bottom leaf. By reversing the block lVthat is, to setthe block W in such a position as to be below the pin Rthe top leap isdrawn toward the bottom leaf. By the use of this link T and the metallicblock W it is possible to regulate the distance which the top leaf andbottom leaf are to be separated from each other. I do not confinemyself, however, to attaching the metallic block W to the bottom leaf,as I may, if I so desire, attach it to the top leaf and reverse theposition of the link T.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. A beadingattachment foracornice brake consisting of a bed plateadapted to be interposed between the top leaf and the bottom leaf, meansfor removably holding the bed plate in position, a beading rod removablyjournaled on the bed plate, and a detachable holding clamp arranged tohold the beading rod, substantially as specified.

2: A beading attachment fora cornice brake consisting of a bed plateadapted to be inter-v posed between the top leaf and the bottom leaf,means for removably holding the bed plate in position, a beading rodremovably journaled on the bed plate, a detachable spring operated clamphinged to 'the'bed plate and arranged to hold the heading rod, adownwardly projecting flange connected to the under side of the bedplate and adapted to be held by the molding clamps, substantially asspecified.

3. In a cornice brakea beading attachment consisting of a bed plate, adownwardly projecting flange connected to the under side of the bedplate and arranged to be held by the molding clamp connected to thebending leaf, brackets detachably connected to each end of the bedplate, a heading rod removablyjournaled in the brackets, a detachablespring operated clamp, hinged to a plate secured to the rear side of thebed plate and arranged to hold the beading rod, the hinged plateprojecting below the bed plate to assist in retaining the bed-plate inposition, and a'shoulder connected to the top of the clamp to supportthe weight of the top leaf when the pressure is brought to bear upon theclamp, substantially as specified.

4. In a cornice brake the combination ofthe top leaf, the bottom leaf, aclamping attachment to regulate. the movement of the top leaf consistingof .a link having in one end an elongated slot, a pin passing throughthe elongated slot and entering its respective leaf, a metallic blockcorresponding in size and shape with the elongated slot changeablymounted on the said pin, and so arranged that by changing the positionof the said block the top leaf may respectively be moved to or away fromthe bottom leaf, and a pin passing through the opposite end of the linkinto its respective leaf, substantially as specified.

Toronto, February 21, A. 13.1895.

JOHN H. OROOKER.

In presence of- O. H. RIoHEs, DONALD O. RIDOUT.

ICC

